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Thread: Hard White/Yellow Milky Stuff

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    Join Date
    Jan 2013
    Location
    Friendswood, TX
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    320

    Hard White/Yellow Milky Stuff

    Hey guys... Found this today under my waterfall.


    It wouldn't come off with a brush, haven't hit it with acid yet. It is smooth, shiny, and only in one spot.

    Thoughts?
    ~Paul
    19x40 IG including 10' BE, 18,000 gal, plaster, 48 SF DE, 1.5HP pump, AquaPure SWCG, Ozonejoe 30MR, Rockwaterfall, LED light, TF-100 Fill date 11/21/2014
    My ODK Build | My Pool Build | If You're From Texas Vote Here

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    Apr 2007
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    Sebring, Florida
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    Re: Hard White/Yellow Milky Stuff

    Remove it with acid....start with 3:1 water/muriatic and then go 2:1 or more until it comes off. Rinse right away with clean water.

    It will come back sooner or later....nothing you can do.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Join Date
    Jan 2013
    Location
    Friendswood, TX
    Posts
    320

    Re: Hard White/Yellow Milky Stuff

    Thanks! Any idea what it is? It's above the waterline and almost never gets wet.
    ~Paul
    19x40 IG including 10' BE, 18,000 gal, plaster, 48 SF DE, 1.5HP pump, AquaPure SWCG, Ozonejoe 30MR, Rockwaterfall, LED light, TF-100 Fill date 11/21/2014
    My ODK Build | My Pool Build | If You're From Texas Vote Here

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    duraleigh's Avatar
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    Apr 2007
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    Sebring, Florida
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    Re: Hard White/Yellow Milky Stuff

    It's called efflorescence. moisture from behind the rock migrates onto the surface where it evaporates leaving behind the minerals it has carried with it.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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